Orally administrable opioid formulations having extended duration of effect
First Claim
Patent Images
1. A bioavailable sustained-release oral analgesic dosage form for once-a-day administration, comprising:
- a unit dose comprising an analgesically effective amount of a plurality of pharmaceutically acceptable matrices comprising an opioid analgesic or a salt thereof, and a hydrophobic material selected from the group consisting of an alkylcellulose, an acrylic resin and mixtures thereof, said matrices further comprising at least one C12 to C36 aliphatic alcohol, each of said matrices having a diameter from about 0.1 mm to about 3 mm, said dosage form being bioavailable and providing a therapeutic effect for about 24 hours or more after oral administration to a human patient.
0 Assignments
0 Petitions
Accused Products
Abstract
Sustained release oral solid dosage forms of opioid analgesics are provided as multiparticulate systems which are bioavailable and which provide effective blood levels of the opioid analgesic for at least about 24 hours. A unit dose of the opioid analgesic contains a plurality of substrates including the opioid analgesic in sustained release form. The substrates have a diameter from about 0.1 mm to about 3 mm.
357 Citations
26 Claims
-
1. A bioavailable sustained-release oral analgesic dosage form for once-a-day administration, comprising:
a unit dose comprising an analgesically effective amount of a plurality of pharmaceutically acceptable matrices comprising an opioid analgesic or a salt thereof, and a hydrophobic material selected from the group consisting of an alkylcellulose, an acrylic resin and mixtures thereof, said matrices further comprising at least one C12 to C36 aliphatic alcohol, each of said matrices having a diameter from about 0.1 mm to about 3 mm, said dosage form being bioavailable and providing a therapeutic effect for about 24 hours or more after oral administration to a human patient. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22)
-
2. A bioavailable sustained-release oral analgesic dosage form for once-a-day administration, comprising:
a unit dose comprising a plurality of pharmaceutically acceptable matrices comprising an analgesically effective amount of hydromorphone or a salt thereof, ethylcellulose and stearyl alcohol, each of said matrices having a diameter from about 0.1 mm to about 3 mm, said dosage form being bioavailable and providing a therapeutic effect for about 24 hours or more after oral administration to a human patient. - View Dependent Claims (23, 24)
-
16. A bioavailable sustained-release oral analgesic dosage form for once-a-day administration, comprising:
a unit dose comprising a plurality of pharmaceutically acceptable matrices comprising an analgesically effective amount of tramadol or a salt thereof, ethylcellulose and stearyl alcohol, each of said matrices having a diameter from about 0.1 mm to about 3 mm, said dosage form being bioavailable and providing a therapeutic effect for about 24 hours or more after oral administration to a human patient. - View Dependent Claims (25, 26)
Specification